Pinpoint Test Y: The Diesel Exhaust Fluid Level Indicator Or RTT (RECONFIGURABLE Telltale) Indicator Is Never Or Always On
- Normal Operation and Fault Conditions
See Diesel Exhaust Fluid Level Indicator or RTT Indicator. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .
If the diesel exhaust fluid warning indicator message is missing for less than 5 seconds, the IPC defaults the diesel exhaust fluid level indicator or diesel exhaust fluid level RTT indicator to the last indication state (on or off), based upon on the last message received.
If the diesel exhaust fluid level indicator message is missing for 5 seconds or longer, the IPC defaults the diesel exhaust fluid level indicator or diesel exhaust fluid level RTT indicator off.
Possible Sources
- Diesel exhaust fluid level concern
- Communication concern
- Message center concern
- GWM concern
- PCM concern
- IPC
- Y1 IDENTIFY THE IPC (INSTRUMENT PANEL CLUSTER) LEVEL
- Determine if the vehicle is equipped with a 4-inch display IPC. REFER to: Instrument Panel Cluster (IPC) - Overview .
Is the vehicle is equipped with a 4-inch display IPC?
Yes GO to Y3 No GO to Y2 - Y2 CHECK THE MESSAGE CENTER OPERATION
- Ignition ON.
- Close all doors and the hood.
- Clear all message center warnings by pressing the OK button for each warning present.
- Monitor the door ajar RTT indicator.
- Open the driver door.
- Clear the message center popup warning.
- Monitor the door ajar RTT indicator.
Is the door ajar RTT indicator off with the door closed, and on with the door open?
Yes GO to Y4 No GO to Pinpoint Test A - Y3 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) INDICATOR LAMP CONTROL ACTIVE COMMAND USING A DIAGNOSTIC SCAN TOOL
- Ignition ON.
- Using a diagnostic scan tool, view the IPC Parameter Identifications (PIDs).
- Access the IPC and control the ALL_LAMPSPID
- Command all the warning indicators on then off while observing the diesel exhaust fluid level indicator.
Does the diesel exhaust fluid level indicator turn on when commanded on and turn off when commanded off?
Yes GO to Y4 No GO to Y9 - Y4 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) KOEO (KEY ON, ENGINE OFF) SELF-TEST
- Using a diagnostic scan tool, perform the PCMKOEO self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to the Master DTC Chart. No GO to Y5 - Y5 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Using a diagnostic scan tool, perform the IPC self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to Diagnostic Trouble Code (DTC) Chart . No GO to Y6 - Y6 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to: Controller Area Network (CAN) Module Communications Network . No If the diesel exhaust fluid level indicator or RTT indicator is always on, DIAGNOSE all PCM Diagnostic Trouble Codes (DTCs). REFER to the Master DTC Chart. If the diesel exhaust fluid level indicator or RTT indicator is never on, VERIFY the diesel exhaust fluid level is low or empty. GO to Y7 - Y7 CHECK THE DIESEL EXHAUST FLUID LEVEL WITH THE REDUCTANT TANK EMPTY
- Ignition OFF.
- Drain the diesel exhaust fluid from the reducatant tank.
- Ignition ON.
- Monitor the diesel exhaust fluid level indicator or RTT indicator.
Did the diesel exhaust fluid level indicator or RTT indicator turn on?
Yes The system is operating correctly at this time. The diesel exhaust fluid level wasn't low enough to turn on the diesel exhaust fluid level indicator or RTT indicator. No GO to Y8 - Y8 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION
- Ignition OFF.
- Disconnect and inspect the PCM connectors.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect the PCM connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, Refer to PCM GUIDED ROUTINE TESTING
Internet Explorer version 11 or greater is required to perform this Pinpoint Test.No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues. - Y9 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION
- Ignition OFF.
- Disconnect and inspect the IPC connector.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect the IPC connector. Make sure it seats and latches correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new IPC. REFER to: Instrument Panel Cluster (IPC) . No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.